US9007880B2 - Thermally assisted magnetic recording medium and magnetic recording and reproducing apparatus - Google Patents
Thermally assisted magnetic recording medium and magnetic recording and reproducing apparatus Download PDFInfo
- Publication number
- US9007880B2 US9007880B2 US14/385,840 US201314385840A US9007880B2 US 9007880 B2 US9007880 B2 US 9007880B2 US 201314385840 A US201314385840 A US 201314385840A US 9007880 B2 US9007880 B2 US 9007880B2
- Authority
- US
- United States
- Prior art keywords
- underlayer
- magnetic recording
- recording medium
- magnetic
- thermally assisted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 44
- 239000000956 alloy Substances 0.000 claims abstract description 44
- 239000000758 substrate Substances 0.000 claims abstract description 35
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 22
- 238000010030 laminating Methods 0.000 claims abstract description 9
- 229910005335 FePt Inorganic materials 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 17
- 229910052750 molybdenum Inorganic materials 0.000 claims description 16
- 229910052721 tungsten Inorganic materials 0.000 claims description 16
- 229910052715 tantalum Inorganic materials 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052758 niobium Inorganic materials 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 6
- 229910018979 CoPt Inorganic materials 0.000 claims description 5
- 229910052681 coesite Inorganic materials 0.000 claims description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 229910052682 stishovite Inorganic materials 0.000 claims description 5
- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 claims description 3
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 134
- 230000000052 comparative effect Effects 0.000 description 30
- 230000001681 protective effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 229910052720 vanadium Inorganic materials 0.000 description 11
- 229910052804 chromium Inorganic materials 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 239000012790 adhesive layer Substances 0.000 description 9
- 239000013078 crystal Substances 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 4
- 229910000599 Cr alloy Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- ZSBXGIUJOOQZMP-JLNYLFASSA-N Matrine Chemical compound C1CC[C@H]2CN3C(=O)CCC[C@@H]3[C@@H]3[C@H]2N1CCC3 ZSBXGIUJOOQZMP-JLNYLFASSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010702 perfluoropolyether Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 229910001149 41xx steel Inorganic materials 0.000 description 1
- 241001239379 Calophysus macropterus Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910005435 FeTaN Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910015202 MoCr Inorganic materials 0.000 description 1
- 229910016024 MoTa Inorganic materials 0.000 description 1
- 229910016026 MoV Inorganic materials 0.000 description 1
- 229910016048 MoW Inorganic materials 0.000 description 1
- 229910000943 NiAl Inorganic materials 0.000 description 1
- 241000849798 Nita Species 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 229910004525 TaCr Inorganic materials 0.000 description 1
- 229910004168 TaNb Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
- G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
- G11B5/737—Physical structure of underlayer, e.g. texture
-
- G11B5/738—
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/09—Digital recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4866—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives the arm comprising an optical waveguide, e.g. for thermally-assisted recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
- G11B5/6088—Optical waveguide in or on flying head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/82—Disk carriers
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-104566 | 2012-05-01 | ||
JP2012104566A JP5961439B2 (ja) | 2012-05-01 | 2012-05-01 | 熱アシスト磁気記録媒体及び磁気記録再生装置 |
PCT/JP2013/062609 WO2013165002A1 (ja) | 2012-05-01 | 2013-04-30 | 熱アシスト磁気記録媒体及び磁気記録再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20150049594A1 US20150049594A1 (en) | 2015-02-19 |
US9007880B2 true US9007880B2 (en) | 2015-04-14 |
Family
ID=49514401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/385,840 Active US9007880B2 (en) | 2012-05-01 | 2013-04-30 | Thermally assisted magnetic recording medium and magnetic recording and reproducing apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US9007880B2 (zh) |
JP (1) | JP5961439B2 (zh) |
CN (1) | CN104303232B (zh) |
WO (1) | WO2013165002A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9899594B2 (en) | 2015-09-23 | 2018-02-20 | Samsung Electronics Co., Ltd. | Magnetic memory devices |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9934797B2 (en) * | 2016-04-26 | 2018-04-03 | Tdk Corporation | Multilayer element including base multilayer body, magnetic sensor and microwave assisted magnetic head |
JP7122175B2 (ja) * | 2018-06-25 | 2022-08-19 | 昭和電工株式会社 | 熱アシスト磁気記録媒体および磁気記憶装置 |
JP7244721B2 (ja) * | 2019-04-09 | 2023-03-23 | 株式会社レゾナック | 磁気記録媒体および磁気記憶装置 |
JP7258275B2 (ja) * | 2019-05-09 | 2023-04-17 | 株式会社レゾナック | 磁気記録媒体および磁気記録再生装置 |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06259743A (ja) | 1993-03-10 | 1994-09-16 | Hitachi Ltd | 磁気記録媒体及び磁気記録装置 |
JPH11353648A (ja) | 1998-06-10 | 1999-12-24 | Akita Prefecture | 規則合金薄膜からなる情報記録媒体の製造方法 |
JP2002025032A (ja) | 2000-06-30 | 2002-01-25 | Sony Corp | 磁気記録媒体 |
JP2002208129A (ja) | 2000-11-09 | 2002-07-26 | Hitachi Maxell Ltd | 磁気記録媒体及びその製造方法並びに磁気記録装置 |
JP2004178753A (ja) | 2002-11-28 | 2004-06-24 | Toshiba Corp | 垂直磁気記録媒体 |
US6916530B2 (en) * | 2001-10-24 | 2005-07-12 | Toda Kogyo Corporation | Perpendicular magnetic recording medium |
JP2009146558A (ja) | 2007-12-14 | 2009-07-02 | Samsung Electronics Co Ltd | 磁気薄膜構造体、磁気記録媒体及びその製造方法 |
JP2009158054A (ja) | 2007-12-27 | 2009-07-16 | Hitachi Global Storage Technologies Netherlands Bv | 垂直磁気記録媒体及びその製造方法 |
US7829208B2 (en) | 2007-11-29 | 2010-11-09 | Seagate Technology Llc | Chromium nitride layer for magnetic recording medium |
JP2011198455A (ja) | 2010-02-23 | 2011-10-06 | Showa Denko Kk | 熱アシスト磁気記録媒体及び磁気記憶装置 |
JP2012014750A (ja) | 2010-06-29 | 2012-01-19 | Showa Denko Kk | 熱アシスト磁気記録媒体及び磁気記憶装置 |
JP2012160243A (ja) | 2011-02-02 | 2012-08-23 | Showa Denko Kk | 熱アシスト磁気記録媒体及び磁気記憶装置 |
JP2012169017A (ja) | 2011-02-15 | 2012-09-06 | Showa Denko Kk | 熱アシスト磁気記録媒体及び磁気記憶装置 |
JP2012221544A (ja) | 2011-04-14 | 2012-11-12 | Showa Denko Kk | 熱アシスト磁気記録媒体、及び磁気記録再生装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1395726A (zh) * | 2000-01-13 | 2003-02-05 | 日立麦克赛尔株式会社 | 磁记录介质,磁记录介质的制造方法,以及磁记录装置 |
US20090147401A1 (en) * | 2006-05-08 | 2009-06-11 | Migaku Takahashi | Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproducing apparatus |
JP5137087B2 (ja) * | 2006-09-08 | 2013-02-06 | エイジェンシー フォア サイエンス テクノロジー アンド リサーチ | L1o規則垂直記録媒体の製造方法 |
CN102473420B (zh) * | 2009-08-20 | 2015-01-07 | 昭和电工株式会社 | 热辅助磁记录介质和磁存储装置 |
-
2012
- 2012-05-01 JP JP2012104566A patent/JP5961439B2/ja active Active
-
2013
- 2013-04-30 US US14/385,840 patent/US9007880B2/en active Active
- 2013-04-30 WO PCT/JP2013/062609 patent/WO2013165002A1/ja active Application Filing
- 2013-04-30 CN CN201380022551.1A patent/CN104303232B/zh active Active
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06259743A (ja) | 1993-03-10 | 1994-09-16 | Hitachi Ltd | 磁気記録媒体及び磁気記録装置 |
JPH11353648A (ja) | 1998-06-10 | 1999-12-24 | Akita Prefecture | 規則合金薄膜からなる情報記録媒体の製造方法 |
JP2002025032A (ja) | 2000-06-30 | 2002-01-25 | Sony Corp | 磁気記録媒体 |
JP2002208129A (ja) | 2000-11-09 | 2002-07-26 | Hitachi Maxell Ltd | 磁気記録媒体及びその製造方法並びに磁気記録装置 |
US6916530B2 (en) * | 2001-10-24 | 2005-07-12 | Toda Kogyo Corporation | Perpendicular magnetic recording medium |
JP2004178753A (ja) | 2002-11-28 | 2004-06-24 | Toshiba Corp | 垂直磁気記録媒体 |
US7829208B2 (en) | 2007-11-29 | 2010-11-09 | Seagate Technology Llc | Chromium nitride layer for magnetic recording medium |
JP2009146558A (ja) | 2007-12-14 | 2009-07-02 | Samsung Electronics Co Ltd | 磁気薄膜構造体、磁気記録媒体及びその製造方法 |
JP2009158054A (ja) | 2007-12-27 | 2009-07-16 | Hitachi Global Storage Technologies Netherlands Bv | 垂直磁気記録媒体及びその製造方法 |
JP2011198455A (ja) | 2010-02-23 | 2011-10-06 | Showa Denko Kk | 熱アシスト磁気記録媒体及び磁気記憶装置 |
JP2012014750A (ja) | 2010-06-29 | 2012-01-19 | Showa Denko Kk | 熱アシスト磁気記録媒体及び磁気記憶装置 |
JP2012160243A (ja) | 2011-02-02 | 2012-08-23 | Showa Denko Kk | 熱アシスト磁気記録媒体及び磁気記憶装置 |
JP2012169017A (ja) | 2011-02-15 | 2012-09-06 | Showa Denko Kk | 熱アシスト磁気記録媒体及び磁気記憶装置 |
JP2012221544A (ja) | 2011-04-14 | 2012-11-12 | Showa Denko Kk | 熱アシスト磁気記録媒体、及び磁気記録再生装置 |
Non-Patent Citations (2)
Title |
---|
Ikuya Tagawa, et al., "Relationship Between High Density Recording Performance and Particle Coercivity Distribution", IEEE Transactions on Magnetics, Nov. 1991, pp. 4975-4977, vol. 27, No. 6. |
International Search Report of PCT/JP2013/062609, dated Jul. 16, 2013. [PCT/ISA/210]. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9899594B2 (en) | 2015-09-23 | 2018-02-20 | Samsung Electronics Co., Ltd. | Magnetic memory devices |
Also Published As
Publication number | Publication date |
---|---|
WO2013165002A1 (ja) | 2013-11-07 |
CN104303232A (zh) | 2015-01-21 |
JP5961439B2 (ja) | 2016-08-02 |
US20150049594A1 (en) | 2015-02-19 |
CN104303232B (zh) | 2017-11-28 |
JP2013232266A (ja) | 2013-11-14 |
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